September weather forecastUiraúna, Brazil
September
Weather in September
September, the first month of the spring in Uiraúna, is still a hot month, with an average temperature ranging between min 20.9°C (69.6°F) and max 33.8°C (92.8°F).Temperature
The average high-temperature is a still hot 33.8°C (92.8°F) in September, hardly different from the 32.8°C (91°F) recorded in August. With a significant daily temperature differential, Uiraúna's nighttime temperature in September falls to an average of 20.9°C (69.6°F).Heat index
The heat index value for September is evaluated at a torrid 38°C (100.4°F). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.When assessing, remember that heat index measurements are for light winds and shaded spots. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'real feel' or 'apparent temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
Perspiration and the resultant sweat evaporation are the body's natural thermostat, helping regulate temperature. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.
Humidity
In September, the average relative humidity in Uiraúna is 50%.Rainfall
The month with the least rainfall in Uiraúna, Brazil, is September, when the rain falls for 2.7 days and typically collects 2mm (0.08") of precipitation.Daylight
In Uiraúna, the average length of the day in September is 12h and 4min.On the first day of September in Uiraúna, sunrise is at 05:33 and sunset at 17:33. On the last day of the month, sunrise is at 05:18 and sunset at 17:28 -03.
Sunshine
The month with the most sunshine is September, with an average of 9.8h of sunshine.UV index
The months with the highest UV index in Uiraúna are January through March, August through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: In September, the maximum UV index of 7 translates into these guidelines:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Uiraúna, Brazil
- Average high temperature in September: 33.8°C
The warmest month (with the highest average high temperature) is October (34.7°C).
The month with the lowest average high temperature is June (30.6°C).
- Average low temperature in September: 20.9°C
The month with the highest average low temperature is December (23.3°C).
The coldest month (with the lowest average low temperature) is July (19°C).
Average pressure in September
Uiraúna, Brazil
- Average pressure in September: 1013.9mbar
The month with the highest atmospheric pressure is July (1015.4mbar).
The month with the lowest atmospheric pressure is November (1010.5mbar).
Average wind speed in September
Uiraúna, Brazil
- Average wind speed in September: 16.2km/h
The windiest month (with the highest average wind speed) is October (16.6km/h).
The calmest month (with the lowest average wind speed) is April (9.6km/h).
Average humidity in September
Uiraúna, Brazil
- Average humidity in September: 50%
The months with the highest relative humidity are April and May (73%).
The months with the lowest relative humidity are October and November (48%).
Average rainfall in September
Uiraúna, Brazil
- Average rainfall in September: 2mm
The wettest month (with the highest rainfall) is March (123mm).
The driest month (with the least rainfall) is September (2mm).
Average rainfall days in September
Uiraúna, Brazil
- Average rainfall days in September: 2.7 days
The month with the highest number of rainy days is March (24.8 days).
The month with the least rainy days is September (2.7 days).
Average daylight in September /
Average sunshine in September
Uiraúna, Brazil
- Average daylight in September: 12h and 6min
The month with the longest days is December (Average daylight: 12h and 30min).
The month with the shortest days is June (Average daylight: 11h and 48min).
- Average sunshine in September: 9h and 48min
The month with the most sunshine is September (Average sunshine: 9h and 48min).
The months with the least sunshine are March and April (Average sunshine: 8h and 12min).
Average sunshine days in September
Uiraúna, Brazil
- Average sunshine days in September: 26.1 days
The month with the most sunshine days is September (26.1 days).
The month with the least sunshine days is April (4.9 days).
Average UV index in September
Uiraúna, Brazil
- Average UV index in September: 7
The months with the highest UV index are January, February, March, August, September, October, November and December (UV index 7).
The months with the lowest UV index are April, May, June and July (UV index 6).
Average cloud cover in September
Uiraúna, Brazil
- Average cloud cover in September: 16
The month with the most cloud cover is April (Cloud cover 44).
The month with the least cloud cover is September (Cloud cover 16).
Average visibility in September
Uiraúna, Brazil
- Average visibility in September: 10km
The months with the highest visibility are January, February, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are March, April and May (9km).





